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Cole_Robbie · June 19, 2016

In addition to nutrients, kelp also contains a naturally-occurring plant growth hormone.

Chitin is also supposed to increase cell wall strength, leading to stronger stems and sturdier plants.

June 19, 2016	#21
Cole_Robbie Tomatovillian™ Join Date: Jun 2012 Location: Illinois, zone 6 Posts: 8,407	In addition to nutrients, kelp also contains a naturally-occurring plant growth hormone. Chitin is also supposed to increase cell wall strength, leading to stronger stems and sturdier plants.